128790560

素因数分解:

$2^5\times 5^1\times {\mathrm{804941}}^1$

素因数の和:804956

約数の個数: 24

約数和(自身を含む): 304268076

約数和(自身を除く): 175477516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 804941, 1609882, 3219764, 4024705, 6439528, 8049410, 12879056, 16098820, 25758112, 32197640, 64395280, 128790560]

約数ペア:

[(1, 128790560), (2, 64395280), (4, 32197640), (5, 25758112), (8, 16098820), (10, 12879056), (16, 8049410), (20, 6439528), (32, 4024705), (40, 3219764), (80, 1609882), (160, 804941)]